Finding the Fourth Proportional to 5,288.34, 7,287.84 and 3,872.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,288.34 : 7,287.84 = 3,872.46 : x
2. Step 2: Convert to fraction form
   5,288.34/7,287.84 = 3,872.46/x
3. Step 3: Cross multiply
   5,288.34x = 7,287.84 × 3,872.46
4. Step 4: Simplify right side
   5,288.34x = 28,221,868.89
5. Step 5: Solve for x
   x = 28,221,868.89/5,288.34
6. Step 6: Final answer
   x = 5,336.62